<template>
  <div id="root">
    <div class="todo-container">
      <div class="todo-wrap">
        <!-- <MyHeader :receive="receive"></MyHeader> -->
        <!-- 自定义组件 -->
        <MyHeader @receive="receive"></MyHeader>
        <MyList
          :todoList="todoList"
          :checkDone="checkDone"
          :deleteObj="deleteObj"
        ></MyList>
        <!-- <MyFooter
          :todoList="todoList"
          :checkAll="checkAll"
          :clearAll="clearAll"
        ></MyFooter> -->
        <!-- 自定义组件 -->
        <MyFooter
          :todoList="todoList"
          @checkAll="checkAll"
          @clearAll="clearAll"
        ></MyFooter>
      </div>
    </div>
  </div>
</template>

<script>
import MyHeader from "./components/MyHeader.vue";
import MyFooter from "./components/MyFooter.vue";
import MyList from "./components/MyList.vue";

export default {
  name: "App",
  components: {
    MyHeader,
    MyFooter,
    MyList,
  },
  data() {
    return {
      todoList: JSON.parse(localStorage.getItem("todoList")) || [],
    };
  },
  methods: {
    receive(e) {
      this.todoList.unshift(e);
    },
    checkDone(id) {
      console.log(id);
      this.todoList.forEach((todo) => {
        if (todo.id === id) todo.done = !todo.done;
      });
    },
    deleteObj(id) {
      console.log(id);
      this.todoList = this.todoList.filter((todo) => {
        return todo.id !== id;
      });
    },

    checkAll(checked) {
      this.todoList.forEach((todo) => {
        todo.done = checked;
      });
    },

    clearAll() {
      this.todoList = this.todoList.filter((todo) => {
        return !todo.done;
      });
    },
  },

  watch: {
    todoList: {
      deep: true,
      handler(value) {
        localStorage.setItem("todoList", JSON.stringify(value));
      },
    },
  },
};
</script>

<style>
/*base*/
body {
  background: #fff;
}

.btn {
  display: inline-block;
  padding: 4px 12px;
  margin-bottom: 0;
  font-size: 14px;
  line-height: 20px;
  text-align: center;
  vertical-align: middle;
  cursor: pointer;
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.2),
    0 1px 2px rgba(0, 0, 0, 0.05);
  border-radius: 4px;
}

.btn-danger {
  color: #fff;
  background-color: #da4f49;
  border: 1px solid #bd362f;
}

.btn-danger:hover {
  color: #fff;
  background-color: #bd362f;
}

.btn:focus {
  outline: none;
}

.todo-container {
  width: 600px;
  margin: 0 auto;
}
.todo-container .todo-wrap {
  padding: 10px;
  border: 1px solid #ddd;
  border-radius: 5px;
}
</style>
